Illuminated pencil.



E. V. KELLY.

ILLUMINATED PENCIL.

APPLICATION FILED JULY 26. 1916.

1,230,721, PatentedJune19,1917.

snow doc E: V. [feign EDUARDO V. KELLY, OF VEDADO, HABANA, CUBA.

ILLUMINATED PENCIL.

To all whom it may concern:

Be it known that I, EDUARDO V. KELLY, a citizen of the Republic of Cuba, residing at Vedado, Habana, Cuba, have invented certain new and useful Improvements in Illuminated Pencils; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to new and useful improvements in illuminated pencils and the principal object of the invention is to provide a pencil which carries an electric illuminating means to enable the user to write in the darkness.

Another object of the invention is to pro vide a novel means for supporting the battery and lamp in such position as to direct the light rays downwardly around the point of the pencil so that the light will be concentrated at the point of contact of the pencil with the writing surface.

A still further object of the invention is to provide a device having a cone shaped cap adjacent the point of the pencil which is preferably formed of glass or any other suitable transparentmaterial to permit the light to pass therethrough and on to the writing surface.

With these and other objects in view, the invention consists in the novel combination and arrangement of parts which will be fully set forth in the following specification and accompanying drawing, in which 2-- Figure 1 is a side view in elevation of a pencil constructed in accordance with this invention.

Fig. 2 is a vertical sectional view through the encil.

Fig. 3 is a transverse sectional view on line 33 of Fig. 1.

Fig. 4 is a transverse sectional view on line 44 of Fig. 1.

Referring now to the drawing the numeral 1 desi ates the main outer shell of the pencil which is preferably formed of metal and is provided at one end with internal screw threads 2 for the reception of the threaded plug 3 having formed therein a central axial opening t. cap 5 is slidably mounted on the shell adjacent its threaded end and is provided with a contact 6 which is connected to its end wall and which is of a diameter to fit within the opening 4. This contact 6 is adapted to establish electrical communica- Specification of Letters Patent.

Patented June 19, 1917.

Application filed July 26, 1916. Serial No. 111,442. i

tion between the battery cell and the casing in order to control the lighting of the lamp which illuminates the device. Integral with the end of the casing 1 opposite the threaded end is a suitable plug 7 which is provided centrally with a lamp socket 8 which opens outwardly as shown and this socket is seated within the externally screw threaded collar 9 so that when the lamp bulb 10 is threaded in place it will be wholly disposed within the collar and thus be protected against breakage. The central contact of said lamp bulb is adapted to engage the central contact of the battery designated by the numeral 11 and it will thus be seen that upon moving the contact 6 into engagement with the bottom of the battery a circuit will be completed through the lamp bulb.

Threaded on to the collar 9 hereinbefore referred to is a suitable barrel or cylinder 12 formed of any preferred material which is provided at its outer end with internal screw threads 13. A suitable transversely supporting bar 14 extends through the barrel near the end which is attached to the collar and forms a support for the inner end of the crayon or lead holding tube 15 as clearly shown in Fig. 2. A suitable cone shaped glass cap 16 is provided and is formed with the externally threaded collar 17 at its base which collar is threaded into the threads 13 of the tube or barrel 12 and this cap is provided at its apex with an axial opening 18 through which the outer end of the tube 15 extends. It will thus be seen that the cap 16 forms a support for cooperation with the support 14 in holding the crayon containing tube in proper position.

In use it will be understood that a suitable lead or crayon is placed in the tube 15 and when it is desired to write in the dark, the cap 5 is pushed inwardly so that the contact 6 engages the bottom of the battery thereby completing the circuit through the lamp bulb and it will be apparent that the lamp bulb rays will be directed through the tube 12 and the glass cap 16 downwardly While in the foregoing there has been shown and described the preferred embodiment of this invention, it is to be understood that such changes may be made in the combination and arrangement of parts as will fall Within the spirit and scope of the appended claim.

What is claimed is An illuminated pencil comprising acylindrical shell a battery located in said shell, a lamp socket formed in one end of the shell, an electric lamp carried by said socket and electrically connected to the battery, and an externally screwthreaded collar formed on the socket and surrounding the electric lamp to protect it, a barrel threaded to said collar, a cone-shaped glass cap threaded to the barrel and having a central opening, a supporting bar carried by the interior Wall of said barrel, a crayon supporting tube having one end secured to the bar and its other end extending through the openlng of the cap, and means for completing an electric circuit ,to the electric lamp.

In testimony whereof I aflix my signature in presence of a Witness.

EDUARDO V. KELLY.

Witness MANUEL VILLAR. 

